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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Genetic variability in Mediterranean buffalos evaluated by pedigree analysis.
Variabilidade genética na raça bubalina Mediterrânea avaliada por meio de análise de pedigree.
Autores:  TEIXEIRA NETO, M. R.
CRUZ, J. F. da
RAMOS, A. A.
CARNEIRO, P. L. S.
AZEVEDO, D. M. M. R.
BOZZI, R.
MALHADO, C. H. M.
Data:  2013-02-20
Ano:  2012
Palavras-chave:  Bubalus bubalis
Endogamia
Estrutura genética populacional
Fundadores
Ancestrais
Resumo:  The objective of this research was to study the population genetic structure of four herds of Mediterranean buffaloes in Brazil. It was used pedigree data from 6,588 buffaloes of Mediterranean breed born from 1980 to 2002. Of the total number of animals studied, 60.5, 15.3 and 2.1% had a pedigree in the first, second and third ascendancy, respectively. The effective number of herds that provided breeding males was 1.60 for parents, 1.16 for grandparents and 1.00 for greatgrandparents. There were 923 founder animals and only 71 effective founders. The effective number of ancestors explaining the genetic variability of the population was 71 and only 30 ancestors accounted for 50% of the genetic variability of the population. The average relatedness coefficient (AR) between individuals and inbreeding (F) of the population were estimated at 0.37 and 0.34% respectively. The average estimate of generation interval was 8.71±2.85 years. The variability of the current population is the result of a few ancestors, who are mostly also founders showing that the population was developed from a narrow genetic base which characterizes the occurrence of founder effect.

2012
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  0103-8478

28109

http://www.alice.cnptia.embrapa.br/handle/doc/950105

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/76770/1/BubalinoDanielle.pdf
Editor:  Ciência Rural, Santa Maria, v. 42, n. 11, p. 2037-2042, nov. 2012.
Relação:  Embrapa Meio-Norte - Artigo em periódico indexado (ALICE)
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